hle_ipc: Add helper functions to get copy/move handles

src/core/hle/kernel/hle_ipc.cpp

@@ -75,10 +75,14 @@ void HLERequestContext::ParseCommandBuffer(const HandleTable& handle_table, u32_
         if (incoming) {
             // Populate the object lists with the data in the IPC request.
             for (u32 handle = 0; handle < handle_descriptor_header->num_handles_to_copy; ++handle) {
-                copy_objects.push_back(handle_table.GetGeneric(rp.Pop<Handle>()));
+                const u32 copy_handle{rp.Pop<Handle>()};
+                copy_handles.push_back(copy_handle);
+                copy_objects.push_back(handle_table.GetGeneric(copy_handle));
             }
             for (u32 handle = 0; handle < handle_descriptor_header->num_handles_to_move; ++handle) {
-                move_objects.push_back(handle_table.GetGeneric(rp.Pop<Handle>()));
+                const u32 move_handle{rp.Pop<Handle>()};
+                move_handles.push_back(move_handle);
+                move_objects.push_back(handle_table.GetGeneric(move_handle));
             }
         } else {
             // For responses we just ignore the handles, they're empty and will be populated when

src/core/hle/kernel/hle_ipc.h

@@ -210,6 +210,14 @@ public:
     /// Helper function to test whether the output buffer at buffer_index can be written
     bool CanWriteBuffer(std::size_t buffer_index = 0) const;
 
+    Handle GetCopyHandle(std::size_t index) const {
+        return copy_handles.at(index);
+    }
+
+    Handle GetMoveHandle(std::size_t index) const {
+        return move_handles.at(index);
+    }
+
     template <typename T>
     std::shared_ptr<T> GetCopyObject(std::size_t index) {
         return DynamicObjectCast<T>(copy_objects.at(index));
@@ -285,6 +293,8 @@ private:
     std::shared_ptr<Kernel::ServerSession> server_session;
     std::shared_ptr<KThread> thread;
     // TODO(yuriks): Check common usage of this and optimize size accordingly
+    boost::container::small_vector<Handle, 8> move_handles;
+    boost::container::small_vector<Handle, 8> copy_handles;
     boost::container::small_vector<std::shared_ptr<Object>, 8> move_objects;
     boost::container::small_vector<std::shared_ptr<Object>, 8> copy_objects;
     boost::container::small_vector<std::shared_ptr<SessionRequestHandler>, 8> domain_objects;